A display device and a mobile terminal

Abstract

The application provides a display device and a mobile terminal. The display device comprises a function-adding area and a display area located at the periphery of the function-adding area. The function-adding area comprises a function area and a first transition area located between the display area and the function area. The display device comprises a display panel and a cover plate arranged on the display panel. The cover plate comprises a cover plate main body. A first groove is arranged on the cover plate main body. The first groove is located in the first transition area and surrounds the function area. The cover plate further comprises a light shielding layer. The light shielding layer is filled in the first groove, thereby avoiding the thickness difference of the cover plate at different positions in the function-adding area, preventing the light path difference of light passing through different positions of the cover plate from being inconsistent, and ensuring the imaging quality of the camera.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display device and a mobile terminal. Background Technology

[0002] With the development of display technology, especially full-screen technology, manufacturers have various ways to increase the screen-to-body ratio. Among them, the most popular approach is to create an in-display camera (i.e., under-display camera technology) by opening a hole in the display area of ​​the display device.

[0003] Currently, an ink layer is typically placed on the non-display area of ​​the cover plate relative to the display module to enhance its appearance. However, when adhesive is used to bond the cover plate and the ink layer, the ink layer on the non-display area of ​​the cover plate relative to the display module has a certain thickness. This results in inconsistent thickness of the cover plate at different positions within the light-transmitting area. Consequently, the optical path difference of the light entering the camera aperture is inconsistent at different positions within the light-transmitting area, leading to optical path distortion of the incident light entering the camera and deteriorating the camera's imaging performance. Summary of the Invention

[0004] This application provides a display device and a mobile terminal to alleviate the shortcomings of related technologies.

[0005] To achieve the above functions, the technical solutions provided in this application are as follows:

[0006] This application provides a display device, including a functional additional area and a display area located around the functional additional area. The functional additional area includes a functional area and a first transition area located between the display area and the functional area. The display device includes:

[0007] Display panel;

[0008] A cover plate is disposed on the display panel. The cover plate includes a cover plate body and a first groove is formed on the cover plate body. The first groove is located in the first transition area and surrounds the functional area.

[0009] The cover plate further includes a light-shielding layer, which fills the first groove.

[0010] Optionally, in one embodiment, the display device includes a bent portion and a non-bent portion adjacent to the bent portion;

[0011] The display panel has a first through hole, which surrounds the functional area, and the diameter of the first through hole is larger than the width of the functional area; wherein,

[0012] When the display device is in the first state, the first through hole is coaxially arranged with the functional area;

[0013] When the display device is in the second state, the central axis of the first through hole is parallel to and spaced apart from the central axis of the functional area.

[0014] Optionally, in one embodiment, the display device further includes a camera component, which is configured corresponding to the functional area;

[0015] The functional area includes an imaging area corresponding to the field of view of the camera component, and a second transition area located between the imaging area and the first transition area;

[0016] When the display device is in the second state, the side of the display panel closest to the first through hole is located on the side of the second transition zone away from the imaging zone.

[0017] Optionally, in one embodiment, the display device further includes a functional layer located on the side of the display panel away from the cover plate, and a second through hole is formed on the functional layer, the diameter of the second through hole being equal to the diameter of the first through hole;

[0018] When the display device is in the first state, the second through hole is arranged around the functional area;

[0019] When the display device is in the second state, the side of the functional layer near the second through hole is located within the functional additional area, and the central axis of the first through hole is located on the side of the central axis of the second through hole away from the central axis of the camera assembly.

[0020] Optionally, in one embodiment, when the display device is in the first state, the first through hole is coaxially disposed with the camera component;

[0021] When the display device is in the second state, there is a preset misalignment distance between the central axis of the first through hole and the central axis of the camera assembly.

[0022] Optionally, in one embodiment, when the display device is in the second state, the central axis of the first through hole is offset by the preset misalignment distance from the central axis of the camera assembly along a first direction; the width of the second transition zone is greater than the preset misalignment distance.

[0023] Optionally, in one embodiment, the width of the second transition region is greater than or equal to 150 micrometers and less than or equal to 800 micrometers.

[0024] Optionally, in one embodiment, the light-shielding layer includes a first light-shielding portion, which fills the first groove, and the first light-shielding portion has an annular structure;

[0025] When the display device is in the second state, in the first direction, the distances from the two side walls of the first light-shielding part to the straight line containing the central axis of the camera assembly are not equal.

[0026] Optionally, in one embodiment, the display device further includes a non-display area located on the side of the display area away from the functional supplementary area, and the non-display area is disposed around the display area;

[0027] The cover plate body has a second groove, which is located in the non-display area and surrounds the display area.

[0028] The light-shielding layer includes a second light-shielding portion, which fills the second groove, and the thickness of the second light-shielding portion is less than or equal to the depth of the second groove.

[0029] This application provides a mobile terminal, which includes a terminal body and any of the above-described display devices, wherein the terminal body and the display device are integrated into one unit.

[0030] The beneficial effects of the embodiments of this application are as follows: The embodiments of this application provide a display device and a mobile terminal. The display device includes a functional additional area and a display area located around the functional additional area. The functional additional area includes a functional area and a first transition area located between the display area and the functional area. The display device includes a display panel and a cover plate disposed on the display panel. The cover plate includes a cover plate body and a first groove is formed on the cover plate body. The first groove is located in the first transition area and surrounds the functional area. The cover plate also includes a light-shielding layer, which fills the first groove, thereby avoiding thickness differences of the cover plate at different positions in the functional additional area, and thus preventing inconsistent optical path differences of light passing through different positions of the cover plate, thereby ensuring the optical imaging quality of the camera. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of a traditional under-display camera display device;

[0033] Figure 2 This is a top view of the display device provided in the embodiments of this application;

[0034] Figure 3 for Figure 2 A schematic diagram of the first type of cross-section at point A-Aˋ;

[0035] Figure 4 This is a cross-sectional schematic diagram of the cover plate provided in an embodiment of this application;

[0036] Figure 5 This is a schematic diagram of a traditional packaging structure;

[0037] Figure 6 This is a first cross-sectional top view of the cover plate provided in an embodiment of this application;

[0038] Figure 7 for Figure 2 A schematic diagram of the second cross-section at point A-Aˋ. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0040] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Please see Figure 1 This is a schematic diagram of the structure of a traditional under-display camera display device.

[0044] In the existing display device 10, an ink layer 13 is usually provided around the light-transmitting area of ​​the cover plate 11 relative to the display module 12 to enhance the appearance. When the cover plate 11 and the ink layer 13 are bonded together using adhesive 14, the thickness of the ink layer 13 is inconsistent at different positions within the light-transmitting area 100 due to its thickness. This results in inconsistent optical path differences for the light entering the camera hole 10A at different positions within the light-transmitting area 100, causing optical path distortion of the incident light entering the camera 15 and deteriorating the imaging effect of the camera 15. Based on this, this application provides a display device and a mobile terminal that can solve the above-mentioned defects.

[0045] This application provides a display device and a mobile terminal. These will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0046] Please combine Figure 2 and Figure 3 ;in, Figure 2 This is a top view of the display device provided in the embodiments of this application; Figure 3 for Figure 2 A schematic diagram of the first type of cross-section at point A-Aˋ.

[0047] This embodiment provides a display device 20, which includes a bent portion 20A and a non-bent portion 20B adjacent to the bent portion 20A; wherein, in this embodiment... Figure 2 The diagram shows a cross-sectional view of the display device in its first state, which is an example of a flattened state. This example illustrates the technical solution of this application.

[0048] The display device 20 includes a display module 21 and a cover plate 22 disposed on one side of the display module 21 in the light-emitting direction; the display module 21 includes a support film layer 211, a buffer layer 212, a back plate 213, a display panel 214, a polarizer 215, and a flexible substrate 216 stacked together; the cover plate 22 is located on the side of the flexible substrate 216 away from the display panel 214.

[0049] Specifically, the flexible substrate 216 is bonded to the polarizer 215 via a first adhesive layer 217, and the buffer layer 212 and the support film layer 211 can be bonded via a second adhesive layer. The material of the support film layer 211 includes, but is not limited to, stainless steel (SUS), and the material of the flexible substrate 216 includes, but is not limited to, one of transparent polyimide (Colorless and transparent PI, CPI), polyethylene terephthalate (PET), and ultra-thin glass (UTG). The display panel 214 can be an organic light-emitting diode (OLED) display panel or a light-emitting diode (LED) display panel. This embodiment does not impose specific limitations on this.

[0050] Furthermore, in one embodiment, the display module 21 further includes a heat dissipation film layer located between the buffer layer 212 and the support film layer 211, and the material of the heat dissipation film layer includes, but is not limited to, foam rubber.

[0051] In one embodiment, the display device 20 includes a functional supplementary area 2000 and a display area 1000 located around the functional supplementary area 2000. The functional supplementary area 2000 includes a functional area 2100 and a first transition area 2200 located between the display area 1000 and the functional area 2100, the first transition area 2200 being disposed around the functional area 2100. The display device 20 includes a camera component 23, the camera component 23 being disposed corresponding to the functional area 2100. The camera component 23 includes, but is not limited to, a camera.

[0052] Please combine Figure 2 and Figure 4 ;in, Figure 4 This is a cross-sectional schematic diagram of the cover plate provided in an embodiment of this application; the cover plate 22 includes a cover plate body 221, on which a first groove 221A is formed, the first groove 221A being located within the first transition area 2200 and surrounding the functional area 2100; the cover plate 22 also includes a light-shielding layer 222, which fills the first groove 221A; wherein, the material of the light-shielding layer 222 includes, but is not limited to, ink, and the ink is preferably black ink.

[0053] It is understood that in this embodiment, by setting the light-shielding layer to fill the first groove of the cover plate body, and the thickness of the light-shielding layer being less than or equal to the depth of the first groove, the thickness of the light-shielding layer is avoided from affecting the thickness of the cover plate body, thus avoiding the thickness difference of the cover plate body at different positions of the functional additional area, thereby preventing the difference in optical path difference of light passing through different positions of the cover plate, and thus ensuring the optical imaging quality of the camera.

[0054] Specifically, please combine Figure 1 and Figure 4 In one embodiment, the cover plate body 221 includes a first main body portion 2211 and a second main body portion 2212. The first main body portion 2211 is disposed in the first transition area 2200, and the second main body portion 2212 is disposed in the functional area 2100. The side of the first main body portion 2211 away from the display module 21 is flush with the side of the second main body portion 2212 away from the display module 21.

[0055] Further, the light-shielding layer 222 includes a first light-shielding portion 222A, which fills the first groove 221A. The first light-shielding portion 222A has an annular structure, and the sum of the thickness of the first light-shielding portion 222A and the thickness of the first main body portion 2211 is less than or equal to the thickness of the second main body portion 2212. Preferably, the thickness of the first light-shielding portion 222A is equal to the depth of the first groove 221A, the width of the first light-shielding portion 222A is equal to the width of the first groove 221A, and the depth d of the first groove 221A is greater than or equal to 1 micrometer and less than or equal to the thickness of the cover plate body 221. Half of the width w of the first groove 221A is greater than or equal to 0.3 mm and less than or equal to 1 mm. The sum of the thickness of the first light-shielding part 222A and the thickness of the first main body part 2211 is equal to the thickness of the second main body part 2212. This makes the side of the first main body part 2211 away from the display module 21 flush with the side of the second main body part 2212 away from the display module 21, reducing the step difference generated on the cover plate body 221, improving the flatness of the cover plate body 221, and thereby eliminating the optical path difference of light passing through different positions of the cover plate 22 in the functional additional area 2000, thus improving the imaging quality of the under-display camera.

[0056] It should be noted that the thickness of the first light-shielding portion 222A is equal to the depth of the first groove 221A, and the width of the light-shielding layer 222 is equal to the width of the first groove 221A. This is only for illustrative purposes. In another embodiment, the thickness of the light-shielding layer 222 is less than the depth of the first groove 221A. Specifically, the absolute value of the difference between the thickness of the light-shielding layer 222 and the depth of the first groove 221A is less than or equal to 2 micrometers. This embodiment does not impose specific limitations on the thickness of the light-shielding layer 222.

[0057] In one embodiment, the cover plate 22 further includes an adhesive layer 223, which is disposed between the cover plate body 221 and the display module 21. The first groove 221A is located on the side of the cover plate body 221 near the adhesive layer 223. The adhesive layer 223 includes a first adhesive portion 2231 disposed in the first transition area 2200 and a second adhesive portion 2232 disposed in the functional additional area 2000. The side of the first adhesive portion 2231 away from the cover plate body 221 is flush with the side of the second adhesive portion 2232 away from the cover plate body 221.

[0058] Furthermore, the orthographic projection of the adhesive layer 223 onto the light-shielding layer 222 covers the light-shielding layer 222, and the cover plate body 221 is bonded to the display module 21 through the adhesive layer 223. The adhesive layer 223 includes, but is not limited to, optical adhesive. The optical adhesive includes, but is not limited to, one of solid optical adhesive and liquid optical adhesive. When the optical adhesive is solid optical adhesive, it is preferred that the solid optical adhesive is OCA optical adhesive.

[0059] Specifically, please combine Figure 2 , Figure 4 and Figure 5 ;in, Figure 5 This is a schematic diagram of a traditional packaging structure; it should be noted that... Figure 5 The conventional packaging structure 30 shown can be used to encapsulate an under-display camera display device. In the conventional packaging structure 30, the ink layer 13 is located between the cover plate 11 and the adhesive 14. The orthographic projection of the adhesive 14 on the cover plate 11 covers the orthographic projection of the ink layer 13 on the cover plate 11. The ink layer 13 has a certain thickness, which causes the thickness of the adhesive 14 at different positions in the light-transmitting area 100 to be inconsistent. As a result, the optical path difference of the light entering the camera hole is inconsistent at different positions in the light-transmitting area 100, which leads to optical path distortion of the incident light entering the camera and deteriorates the imaging effect of the camera.

[0060] It is understood that in this embodiment, by setting the first light-shielding part 222A to fill the first groove 221A, and the thickness of the first light-shielding part 222A being less than or equal to the depth of the first groove 221A, and the side of the first adhesive part 2231 away from the cover plate body 221 being flush with the side of the second adhesive part 2232 away from the cover plate body 221, the thickness difference of the adhesive layer 223 at different positions within the functional additional area 2000 is avoided, thereby eliminating the optical path difference of light passing through the adhesive layer 223 at different positions within the functional additional area 2000 and improving the imaging quality of the under-display camera.

[0061] In one embodiment, the display device 20 further includes a non-display area 3000, which is located on the side of the 1000 display area away from the functional additional area 2000, and the non-display area 3000 is disposed around the display area 1000; a second groove 221B is provided on the cover plate body 221, which is located in the non-display area 3000 and surrounds the display area 1000; the light-shielding layer 222 includes a second light-shielding portion 222B, which is filled in the second groove 221B, and the absolute value of the difference between the thickness of the second light-shielding portion 222B and the depth of the first groove 221A is less than or equal to 2 micrometers. In this embodiment, the thickness of the second light-shielding portion 222B is not specifically limited.

[0062] It is understood that, in this embodiment, by providing a second groove 221B on the cover plate body 221 and filling the second light-shielding part 222B within the second groove 221B, the flatness of the cover plate body 221 near the display panel 214 is effectively ensured. Furthermore, since the second light-shielding part 222B is filled within the second groove 221B, the thickness of the cover plate body 221 relative to the display area 1000 is not increased. When the cover plate body 221 and the flexible substrate 216 are connected by the adhesive layer 223, the phenomenon of separation from the flexible substrate 216 due to uneven thickness of the cover plate body 221 can be avoided.

[0063] In one embodiment, please refer to Figure 2 , Figure 6 and Figure 7 ;in, Figure 6 This is a first cross-sectional top view of the cover plate provided in an embodiment of this application; Figure 7 for Figure 2 A schematic diagram of the second cross-section at point A-Aˋ.

[0064] It should be noted that in existing technologies, a hole is typically made in the display panel, and the front-facing camera is placed below the hole to enable the display product's photography function. However, due to the misalignment between film layers during the folding process of the display product, the in-screen front-facing camera design can lead to interference between the camera and the screen. This embodiment, in particular, uses... Figure 4 A top cross-sectional view of the cover plate when the display device provided in the embodiment of this application is in the first state. Figure 7 The technical solution of this application is illustrated by taking a cross-sectional view of the display device in its second state and an example of the display device in a bent state.

[0065] In this embodiment, the display device 20 includes a bent portion 20A and a non-bent portion 20B adjacent to the bent portion 20A; the functional additional area 2000 is located in the non-bent portion 20B; wherein, this embodiment uses the first state of the display device 20 as a flattened state and the second state of the display device 20 as a bent state as an example to illustrate the technical solution of this application.

[0066] The display panel 214 has a first through hole 214A, which surrounds the functional area 2100 and has a diameter larger than the width of the functional area 2100. When the display device 20 is in a first state, the first through hole 214A is coaxial with the functional area 2100. When the display device 20 is in a second state, the central axis L1 of the first through hole 214A is parallel to and spaced apart from the central axis L2 of the functional area 2100.

[0067] Specifically, the functional area 2100 includes an imaging area 2110 corresponding to the field of view of the camera component 23, and a second transition area 2120 located between the imaging area 2110 and the first transition area 2200; wherein, when the display device 20 is in the second state, the side of the display panel 214 near the first through hole 214A is located on the side of the second transition area 2120 away from the imaging area 2110; that is, the display panel 214 is not located within the imaging area 2110; furthermore, when the display device 20 is in the second state, in the first direction X, the distances from the two side walls of the first light-shielding part 222A to the straight line containing the central axis L3 of the camera component 23 are not equal, thereby effectively preventing interference between the camera and the display panel 214.

[0068] It should be noted that the display device described in this embodiment can be applied to inward-folding or outward-folding display devices. The difference between the inward-folding and outward-folding display devices is that the displacement direction of the multi-film structure is opposite. Specifically, in the inward-folding display device, the direction of movement of the multi-film structure within the display device is from the bent portion to the non-bent portion; in the outward-folding display device, the direction of movement of the multi-film structure within the display device is from the non-bent portion to the bent portion.

[0069] In this embodiment, the technical solution of this application is illustrated by taking the display device as an inwardly folding display device, the direction of movement of the multi-film layer structure within the display device 20 as the first direction X, and the direction of movement of the multi-film layer structure within the display device as the direction from the folded part to the non-folded part.

[0070] In one embodiment, the display device 20 further includes a functional layer 210, which is located on the side of the display panel 214 away from the cover plate 22. The functional layer 210 has a second through hole 210A, the diameter of which is equal to the diameter of the first through hole 214A. The functional layer 210 can be any one of the back plate 213, the buffer layer 212, and the support film layer 211. In this embodiment, the back plate 213 is used as an example to illustrate the technical solution of this application.

[0071] In this embodiment, when the display device 20 is in a first state, the second through hole 210A is disposed around the functional area 2100; when the display device 20 is in a second state, the side of the functional layer 210 near the second through hole 210A is located within the functional additional area 2000, and the central axis L1 of the first through hole 214A is located on the side of the central axis L2 of the second through hole 210A away from the central axis L3 of the camera assembly 23; specifically, when the display device 20 is in the first state, the first through hole 214A, the second through hole 210A, and the camera assembly 23 are coaxially disposed; when the display device 20 is in a second state, the second through hole 210A is disposed around the functional area 210 ... When 0 is in the second state, there is a preset misalignment distance w between the central axis L1 of the first through hole 214A and the central axis L3 of the camera component 23; specifically, the central axis L1 of the first through hole 214A is offset by the preset misalignment distance w relative to the central axis L3 of the camera component 23 along the first direction X; the width of the second transition region 2120 is greater than the preset misalignment distance w; the width of the second transition region 2120 is greater than or equal to 150 micrometers and less than or equal to 800 micrometers; the hole structure has a first aperture and a second aperture, the first aperture and the second aperture are different; the camera is nested in the hole structure.

[0072] The orthographic projection of the side of the functional layer 210 near the second through hole 210A onto the light-shielding layer 222 is located within the light-shielding layer 222. This prevents the functional layers from being misaligned and moving when the display device 20 is in the second state, thus avoiding obstruction of the camera component 23 and improving the imaging effect of the camera component 23 and the stability of the display device 20.

[0073] The display device 20 includes a camera hole 20C, which is disposed corresponding to the functional area 2100. The camera hole 20C passes through the first adhesive layer 217, the polarizer 215, the display panel 214, the back plate 213, the buffer layer 212, and the support film layer 211 in sequence. The camera hole 20C includes a first through hole 214A and a second through hole 210A.

[0074] It should be noted that, due to the different bending radii and materials of the various film layers in the display module 21, when the display device 20 is bent from a flattened state to a folded state, each film layer of the display module 21 will have a misalignment at the camera hole 20C, i.e., a negative misalignment. The misalignment amounts may differ. This embodiment uses a preset misalignment distance w between the central axis L1 of the first through hole 214A and the central axis L3 of the camera component 23 as an example to illustrate the technical means of this application. The preset misalignment distance is selected according to the actual production situation, and this embodiment does not limit it to a specific value.

[0075] In one embodiment, the functional area 2100 is a perforated structure. When the display device 20 is in a first state, the cross-sectional shape of the perforated structure can be a symmetrical shape such as a circle or a rectangle. When the display device 20 is in a second state, the perforated structure has a first aperture and a second aperture, the first aperture and the second aperture being different. Specifically, the orthographic projection of the perforated structure on the display device 20 is located within the second through hole 210A, and the orthographic projection of the perforated structure on the display device 20 is located within the inner ring of the first light-shielding part 222A, thereby preventing interference between the camera and the functional layer 210, and between the camera and the first light-shielding part 222A.

[0076] Furthermore, in one embodiment, in the first direction X, the distance between the sidewall of the inner ring of the first light-shielding part 222A and the side of the functional layer 210 near the second through hole 210A is greater than the preset misalignment distance w, thereby effectively preventing the edge of the functional layer 210 from being exposed in the camera hole 20C when the display device 20 is bent, thus affecting the overall aesthetics of the display device 20.

[0077] This embodiment provides a mobile terminal, which includes a terminal body and a display device as described in any of the above embodiments, wherein the terminal body and the display device are integrated into one unit.

[0078] It is understood that the display device has been described in detail in the above embodiments, and will not be repeated here.

[0079] In specific applications, the mobile terminal can be the display screen of devices such as smartphones, tablets, laptops, smart bracelets, smartwatches, smart glasses, smart helmets, desktop computers, smart TVs, or digital cameras, and can even be applied to electronic devices with flexible displays.

[0080] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0081] The above provides a detailed description of a display device and mobile terminal provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display device, characterized in that, The display device includes a functional supplementary area and a display area located around the functional supplementary area, the functional supplementary area including a functional area and a first transition area located between the display area and the functional area; the display device includes: A display panel, wherein a first through hole is provided on the display panel and the first through hole is arranged around the functional area; A cover plate, disposed on the display panel, comprises a cover plate body and a light-shielding layer. A first groove is formed on the cover plate body, the first groove being located within a first transition area and surrounding the functional area; the light-shielding layer fills the first groove. The display device includes a bent portion and a non-bent portion adjacent to the bent portion. The display device also includes a camera assembly, which is disposed corresponding to the functional area. The functional area includes an imaging area corresponding to the field of view of the camera assembly and a second transition area located between the imaging area and the first transition area. When the display device is in a first state, the first through hole is coaxially disposed with the functional area. When the display device is in a second state, the central axis of the first through hole is parallel to and spaced apart from the central axis of the functional area, and the side of the display panel closest to the first through hole is located on the side of the second transition area away from the imaging area.

2. The display device according to claim 1, characterized in that, The diameter of the first through hole is larger than the width of the functional area.

3. The display device according to claim 2, characterized in that, The display device further includes a functional layer located on the side of the display panel away from the cover plate. A second through hole is provided on the functional layer, and the diameter of the second through hole is equal to the diameter of the first through hole. When the display device is in the first state, the second through hole is arranged around the functional area; When the display device is in the second state, the side of the functional layer near the second through hole is located within the functional additional area, and the central axis of the first through hole is located on the side of the central axis of the second through hole away from the central axis of the camera assembly.

4. The display device according to claim 3, characterized in that, When the display device is in the first state, the first through hole is coaxially arranged with the camera component; When the display device is in the second state, there is a preset misalignment distance between the central axis of the first through hole and the central axis of the camera assembly.

5. The display device according to claim 4, characterized in that, When the display device is in the second state, the central axis of the first through hole is offset by the preset misalignment distance from the central axis of the camera assembly along the first direction; the width of the second transition zone is greater than the preset misalignment distance.

6. The display device according to claim 5, characterized in that, The width of the second transition region is greater than or equal to 150 micrometers and less than or equal to 800 micrometers.

7. The display device according to claim 1, characterized in that, The light-shielding layer includes a first light-shielding part, which is filled in the first groove, and the first light-shielding part has a ring structure. When the display device is in the second state, in the first direction, the distances from the two side walls of the first light-shielding part to the straight line containing the central axis of the camera assembly are not equal.

8. The display device according to claim 7, characterized in that, The display device further includes a non-display area, which is located on the side of the display area away from the functional supplementary area, and is arranged around the display area; The cover plate body has a second groove, which is located in the non-display area and surrounds the display area. The light-shielding layer includes a second light-shielding portion, which fills the second groove, and the thickness of the second light-shielding portion is less than or equal to the depth of the second groove.

9. A mobile terminal, characterized in that, The mobile terminal includes a terminal body and a display device as described in any one of claims 1-8, wherein the terminal body and the display device are integrated into one unit.

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